dzDeleteProp is a small tool I just wrote, that deletes configurable properties from all Delphi .dfm files in a given directory and optionally its subdirectories.

The reason for such a tool is backwards compatibility to older Delphi versions, e.g. Delphi 6 does not know about ExplicitWidth and ExplicitHeight, which Delphi 2007 and above insist on putting into the .dfm files no matter what.